feat(generated): Add Groups and Waitlist APIs, improve event deserialization

[workos-sdk-automation]

Summary

• New public services: GroupsService for organization groups management and UserManagementOrganizationMembershipGroupsService for querying group memberships
• New entity classes: Group, WaitlistUser, WaitlistUserApproved, WaitlistUserCreated, WaitlistUserDenied, CreateGroup, CreateGroupMembership, DomainVerificationIntentOptions
• New enums: WaitlistUserState and expanded SSOProvider/UserManagementAuthenticationProvider with additional OAuth providers (Bitbucket, GitLab, Intuit, LinkedIn, Salesforce, Slack, Vercel, Xero)
• Event handling improvements: Added EventSchemaDiscriminatorConverter for automatic event type deserialization and refactored all event classes to inherit from EventSchema base class
• API improvements: Renamed authorization methods for clarity (e.g., ListOrganizationMembershipResources → ListResourcesForMembership), added optional SSO and DomainVerification fields to IntentOptions
• Field updates: Renamed AdminEmails to ItContactEmails, made several internal properties settable (not internal-only), added RoleSlug to invitations
• Breaking changes: Event subclasses no longer duplicate inherited properties; deprecation warning added to DirectoryUserWithGroups.Groups field

Triggered by workos/openapi-spec@36f2763